# Hydrological drought class early warning using support vector machines and rough sets

> Research article (Environmental Earth Sciences, 2021) · cited 40× · AI/ML

**Wikidata**: [openalex:W3164224180](https://www.wikidata.org/wiki/openalex:W3164224180)  
**Source**: https://4ort.xyz/entity/hydrological-drought-class-early-warning-using-support-vector-machines-and-rough-sets